F32.1
Major depressive disorder, single episode, moderate
Major depressive disorder (MDD), single episode, moderate, is a clinical diagnosis characterized by a period of at least two weeks during which there is either depressed mood or the loss of interest or pleasure in nearly all activities. In a moderate episode, the number of symptoms, their intensity, and/or the degree of functional impairment are intermediate between those specified for mild and severe episodes. Patients typically experience significant difficulty in continuing with social, work, or domestic activities, but are likely to be able to continue to function in at least some areas. This diagnosis requires that the patient has never experienced a previous manic, hypomanic, or depressive episode.
Clinical Symptoms
- Persistent sad, anxious, or empty mood
- Marked diminished interest or pleasure in all, or almost all, activities
- Significant weight loss or gain, or decrease or increase in appetite
- Insomnia or hypersomnia nearly every day
- Psychomotor agitation or retardation nearly every day
- Fatigue or loss of energy nearly every day
- Feelings of worthlessness or excessive or inappropriate guilt
- Diminished ability to think or concentrate, or indecisiveness
- Recurrent thoughts of death or suicidal ideation without a specific plan
Common Causes
- Genetic predisposition and family history of mood disorders
- Neurochemical imbalances, particularly involving serotonin, norepinephrine, and dopamine
- Stressful life events such as loss of a loved one, relationship conflict, or financial problems
- Chronic medical conditions or chronic pain
- History of childhood trauma or abuse
- Side effects of certain medications or substance abuse
Documentation & Coding Tips
Specify the episode frequency
Example: Document that this is the first time the patient has experienced these symptoms to justify the 'single episode' designation rather than 'recurrent'.
Clearly state the severity
Example: Use descriptors such as 'moderate' to indicate that the patient is experiencing significant functional impairment but does not meet the criteria for 'severe' (e.g., no suicidal intent with plan or psychotic features).
Document the presence or absence of psychotic features
Example: Note 'without psychotic features' if the patient is not experiencing delusions or hallucinations to ensure specificity within the F32 category.
Use standardized screening tools
Example: Include the score from a PHQ-9 (Patient Health Questionnaire-9) in the record; a score between 10-14 typically correlates with moderate depression.